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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Database Engineer (TS/SCI) - **Company:** Vantor Inc. - **Location:** Herndon, VA, United States - **Salary:** $140,000.0 - $187,000.0 - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Amazon Web Services, Backup Devices, Cloud Database, Configuration Management, Databases, Data Architecture, Data Dictionary, Data Infrastructure, Data Integration, Data Integrity, Extract Transform Load (ETL), Data Stores, Relational Databases, Database Design, Database Development, Database Security, Decision Support Systems, Disaster Recovery, Graph Database, Identity and Access Management, Knowledge Management, PostgreSQL, Meta-Data Management, Microsoft SQL Server, SQL Azure, Neo4j, OpenShift, Oracle (Applications), Query Optimization, Semantic Web, SPARQL, Unstructured Data, System Availability, Database Optimization, Database Performance, Indexer, Kubernetes, Infrastructure Automation Frameworks, Data Management, Data Pipelines - **Published:** August 1, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9070528/database-engineer-tssci ## About the Role * Must be a U.S. citizen and have an active TS/SCI with CI polygraph. * 12 years of experience and an advanced degree or 17 years of experience with a bachelor's degree. * Demonstrated experience designing, implementing, and administering enterprise database solutions supporting mission-critical applications. * Experience with relational database management systems (e.g., PostgreSQL, Oracle, Microsoft SQL Server) and graph database technologies (e.g., Neo4j, Amazon Neptune, Stardog, GraphDB, or equivalent). * Experience designing and optimizing databases supporting Semantic Web technologies, RDF data stores, or knowledge graph platforms. * Experience developing ETL/ELT processes and integrating structured, semi-structured, and unstructured data from multiple enterprise sources. * Knowledge of database performance tuning, indexing, backup and recovery, replication, security, and high-availability architectures. * Ability to communicate complex technical concepts effectively to both technical and non-technical stakeholders., * Experience supporting enterprise ontology or knowledge graph initiatives within Government or Intelligence Community environments. * Experience implementing RDF triple stores, SPARQL endpoints, and semantic data integration frameworks. * Familiarity with AI/ML data pipelines and the use of semantic data architectures to support advanced analytics and decision support. * Experience with cloud-based database platforms and containerized deployment environments, including Kubernetes and OpenShift. * Experience automating database deployment, configuration management, and monitoring using Infrastructure as Code (IaC) tools. * Certified Data Management Professional (CDMP), Oracle Certified Professional (OCP), Microsoft Certified: Azure Database Administrator Associate, AWS Database Specialty, or equivalent database certification. * Experience providing technical leadership, mentoring, and formal knowledge transfer to Government personnel or large multidisciplinary teams. #cjpost #LI-CJ1 #LI-Onsite Pay Transparency: To support pay transparency, Vantor includes salary ranges in all U.S. job postings. Starting pay for this role will fall within the listed range and will be based on factors such as experience, qualifications, skills, location, and market conditions. Candidates who meet the minimum requirements for the role should not expect to receive compensation at the top of the range. The listed range reflects the expected pay for this position, and final offers will be determined based on each candidate's experience, expertise, and alignment with the role. ## Description Vantor is seeking a Database Engineer to join our team. In this position you will design, develop, implement, and maintain the database infrastructure supporting Object-Based Intelligence (OBI) mission requirements, enterprise ontologies, and knowledge graph platforms. The Database Engineer serves as the technical authority for the design, implementation, optimization, and administration of relational, graph, and semantic database technologies that enable ontology-driven data integration and knowledge management. This position develops scalable data architectures that support Semantic Web technologies, knowledge graphs, and AI/ML-enabled analytics while ensuring high availability, security, performance, and data integrity across enterprise object-management systems. Working closely with ontology engineers, software developers, data architects, and Government stakeholders, the Database Engineer enables efficient storage, retrieval, and management of structured and unstructured data supporting mission operations., * Design, implement, administer, and optimize relational, graph, and semantic database environments supporting Object-Based Intelligence mission requirements. * Develop logical and physical data models that support ontologies, taxonomies, knowledge graphs, and enterprise metadata management. * Design and implement scalable database architectures that support Semantic Web technologies, including RDF triple stores, graph databases, and SPARQL query endpoints. * Develop and maintain Extract, Transform, Load (ETL) and Extract, Load, Transform (ELT) processes that integrate heterogeneous data sources into enterprise knowledge management platforms. * Collaborate with ontology engineers, software developers, data scientists, analysts, and Government stakeholders to translate mission requirements into efficient database designs and data integration solutions. * Optimize database performance through indexing strategies, query optimization, partitioning, replication, and capacity planning to support large-scale analytics and semantic reasoning workloads. * Implement database security controls, encryption, access management, backup and recovery procedures, and auditing capabilities in accordance with Government cybersecurity requirements. * Develop database automation, monitoring, and maintenance processes to ensure high availability, reliability, and operational efficiency. * Support AI/ML initiatives by providing scalable data infrastructure and optimized access to structured, semi-structured, and semantic data repositories. * Produce and maintain technical documentation, database standards, data dictionaries, configuration management artifacts, and operational procedures. * Provide technical leadership, mentoring, and knowledge transfer activities to Government personnel and project team members regarding database architecture, administration, and data management best practices. ## Related Videos - [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone) - [Optimizing Discovery: PostgreSQL's Role in Transforming GetYourGuide's Search](https://www.wearedevelopers.com/videos/1647-optimizing-discovery-postgresql-s-role-in-transforming-getyourguide-s-search) - [Putting the Graph In GraphQL With The Neo4j GraphQL Library](https://www.wearedevelopers.com/videos/257-putting-the-graph-in-graphql-with-the-neo4j-graphql-library) - [Cyber Sleuth: Finding Hidden Connections in Cyber Data](https://www.wearedevelopers.com/videos/893-cyber-sleuth-finding-hidden-connections-in-cyber-data) - [Valven Atlas: Engineering Intelligence That Delivers](https://www.wearedevelopers.com/videos/1660-valven-atlas-engineering-intelligence-that-delivers) - [Dynamic Entities in .NET: Building Low-Code Systems on Top of Entity Framework Core](https://www.wearedevelopers.com/videos/100218-dynamic-entities-in-net-building-low-code-systems-on-top-of-entity-framework-core) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Highest Paying Tech Companies in Europe](https://www.wearedevelopers.com/magazine/162-highest-paying-tech-companies-in-europe) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london)